Grain-tank.



H. G. HARRISON.

GRAIN mm.

\ APPLICATION FILED APR. H. 1916.

11,242,935. J Patented Oct. 16,l917.

2 SHEETS- SHEET 1.

\ a 'ai gwmwwtoz Howard 43. Harrison H. G. HARRISON.

v Patented Oct. 16,1917.

2 swans-sum 2.

' auvemto'c Howa'rb 6.1'iarrison UNITED STATES PATENT OFFICE.

Bowman e. nnnnrson; or sromn, wnsn'nveron.

GRAIN-TAR K.

i j Speciflcation-ofletters Patent. Patented Oct. 16, 191 7.

Application mea'a ru 11, 191 Serial No. 90,335."

To all whom it may concern:

Be it known that I, HowARo G. HARRISON, a citizen of the United States,residing at Spokane, inthe county of Spokane and State 0 strong wallsections, yet that may be made of reasonabl light material which willreadily sustaln itself and the load it is to carry without sagging orlopping especially tank.

during transportation from one location to another.

A still further object is to provide a grain bin or tank mounted uponsln'ds and resting upon a floor supportedby said skids and being capableof being dragged from one field to another or to anyother'desiredlocation.

- 'Another object is to provide improved means for alleviating thebursting strain caused by the pressure of the contents of the binsagainst its walls.

7 My invention is illustrated in the accompanying drawings, in whichFigure 1 is a lan view of my bin or tank.

I Fig. 2'is-an e ovation thereof showing the tank mounted up'on skids.

Fig.3 is a detail in cross section through the ventilating .cupola of mytank. FFig. 4 is a cross section through 4-4 of ig. 1.

Fig. 5 is a perspective of one of the sectional roofplate's.

Fig. 6 is a partial'perspective view of one of the roof rafters- Fig. 7is a partial section through the tank at 77 of Fi 2 showing the interiorhopper alined to de 'verinto the The tank shown in the drawings is moreparticularly of the t e used for storing grain, although I do not limitmyseltto the use of my construction to tanks for this purpose only butmay use it as well for seed storage, S1108, etc.

The wall of the bin is made up of a numspout of theber of circularcorrugated sections placed one above the other but with their joints instaggered relation, each circular section being composed of a number ofunits comprising a main corrugated plate 1 provided with bolt or rivetholes 2 along all edges inspaced relation and so positioned toaccurately engage with any adjoining plates, either on the ends or thesides thereof. The

-units comprising the bottom circular section 3, are riveted t0 theperpendicular leg of clrcular angle irons 4, said irons taking aposition on the inside of the circular sections 3 and the horizontal legbein formed to extend outwardly and same ing provided with holes bywhich the tank may be secured to floor 5. Several of the unit sections 1are provided with a spout 6 closed by a valve member 7 through whichgrain may be taken from the tank in quantities as desired. The spout 6being attached to certain unit sections may be placed at any desiredeleva- "tion in the tank to load grain directly into a wagon or to beused as a spout for filling sacks and the like. The unit sections 1 maybe continued to any desired height to in crease the capacity of the tankand the roof members are attached to provide a substantiallymoisture-proof container or tank for the contents thereof. As animproved means for alleviating the bursting strain caused by thecontents of the tank against these walls and of the strain-upon therivets or bolts by which the tank is fastened together, I providecircular hoop members 8 consistin of semi-circular formed rods 1provided with a hook 9 on one end and two of these rods engaging with a:link -10 to form a secure'fastening but which may be readily detachedfor transportation.

Upon opposite ends at 11 the rods 8 are threaded and engage with thetensioning member 12 which provides means for. overlapping the rods andconsists of two barrel shaped members through which the rod ends mayfipass and a nut attached to tighten the rod rmly around the tank. Thecorrugations-of the unit members provide a means --for holding the rodsin circular relation and preventing them from dropping or saggin Uponthe inside of the tank located to fit into the spout 6, is a hopper 13,thus attached by rivets or bolts 14 and is arranged to de-' liver anyVery often it is desired to have the spout' at an elevation above thebottom of the tank in order to pour the contents of the tank into I awagon body, in some cases it is necessary then to have the spout asection or two above the floor or bottom of the tank and to allowgravity to take care of all of the grain above the top of the hopper 13,the balance of which is necessary to shovel or mechanically elevate whenit will flow by gravity into the receptacle for it.

In order to provide an easy means for conveying the tank from onelocation to another, I provide a floor structure of which 5 is thefloor, 15 floor sills for supporting same, 16 spacing posts and 17 skidsor runners. I prefer to shoe these skids with band iron 18 to eliminateundue friction when transporting the tank. A link 19 attached at 20serves as a means for attaching a team by which the tank may be dragged.The posts 16 may be of any desired length properly placed to thoroughlysupport the tank and their length is usually ad usted to give the properheight or elevation of the tank so that the contents may be loaded intowagons or other receptacles as much as possible by gravity.

The roof of the tank is constructed of a number of segmental circularunits 21 having upturned edges 22 lying at an acute angle into the topsurface of the unit. In assembling the roof these units are placedtogether so as to form a conical shaped roof, the oints being formed byplacing the rafter member 23 at intervals corresponding with the widthof the segmental unit and attaching it to the side circular sections 1at the to thereof,engaging the other end of the ra er member 23 to thecupola structure hereinafter to be described. The rafter 23 is formed ina substantially inverted U-shaped structure 24 with outstanding flanges25 and serves a double purpose of supporting the weight of the segmentalsections 21 and of any load that may be placed upon it, and also servesto suport on its inner end a cupola structure 26. he inner end of therafter 23 is provided wlth tongue members 27 extending beyond thegeneral limit of the rafter and provided to engage with the aforesaidcupola structure to support same. Upon the opposite end of 23 1s adownwardly depending angle plate 28 riveted to 23 and provided withsu1table holes for attachment to the corrugated circular sections 1 uponthe upper edge thereof. The cupola structure 26 consists of a circularcollar 29 with a conical flange 30. At 31 which is the base of 29 areprovided slits for the reception of the tongues 27 which may be enteredand turned upward to positively engage 29 and secure same to the rafters23. In addition to the above, a second fastening 32 is mounted in theend of 23 and consists of a filler block which is provided to supportpins 33 which engage in holes 34 in the flange to actively support thecupola in its proper position without causing undue pressure upon sameThe cupola structure 26 is provided with a conical cap 35 which issupported somewhat above the rest of the structure to allow forventilation for the tank. 35 is provided with a plurality of leg members36 engaging in sockets 37 to substantially retain 35 in spaced relationwith the collar 29. Surrounding the collar 29 is a flange member 38slidable upon 29 and provided to be adjusted over the inner ends of therafters when the roof is completely erected and serves the usefulpurpose of preventing rain from entering the tank, past the ends of therafters and the segmental section 21. The segmental section 21 isprovided with an upturned end 39 which will prevent rain being blownover the end of the section and thence into the tank. An invertedU-shaped seal 40 is provided to engage the segmental sections 21 inengagement with the rafter 23 and provides a seal to make the roofstructure water-tight at the joining of the several sections.

After the rafters have been.mounted the segmental sections are usuallyinserted and rest upon the outturned flanges 25 of the rafter. Thesealing member 40 is then slipped over the end of the rafter andsegmental sections and over the entire length of same until it providesa secure fastening and weather tight joint extending from the cupola tothe eaves of the roof.

In filling the tank the conical cover' on the vcupolamay be removed andthe tank filled directly from' a separator of a threshing machinedelivery spout. In practice, however, it has been found very convenientto remove one or more of the roof sections and pour the formed. When itis necessary to enter the tank a roof section may be removed which willmake access convenient.

While I have herein shown and described limit myself thereto, but expectto use it grain through the opening thus in any form to which it may beapplicable.

I claim 1. A cone shaped, circular roof structure composed of radial,longitudinally tapered or segmental sections formed with upturned sideflanges, means for uniting said sections, said means consisting ofrafter members disposed radially between adjacent sections, "each memberbein' composed of an upstanding, channelli e, longitudinal rib havingoutstanding side flanges, and a longitudinal, channel-like sleeve memberembracing said rib and the adjacent upturned flangesof the adjacentsections.

2. A cone shaped, circular roof structure consisting of a centrallydisposed tubulai' a depending, coniring member supportin cal or flaredflange, sai ring member being provided with a series of slots and saidflange with a series of apertures; radial, longitudinally tapered orsegmental sections formed with upturned side flanges, means for unitingsaid sections, said means consisting of rafter members disposed radiallybetween adjacent sections, each member being composed of 'an upstanding,channellike, longitudinal rib having outstanding side flanges, and alongitudinal, channel-like sleeve member embracing said rib and theadjacent upturned flanges of the adjacent sect-ions, said rafter membersbeing further provided with extended tongues at their inner ends passingthrough the slots of said V tubular ring member and with downwardlydirected members engaging said apertures of said conical flange.

In testimony whereof I afiix m signature.

\ HOWARD G. HA RISON.

